Editorial Material
Chemistry, Multidisciplinary
Elena Shevchenko, Ah-Hyung Alissa Park, Shouheng Sun, Tierui Zhang
Summary: This introduction introduces the Nanoscale themed collection on CO2 capture and conversion, highlighting research on advanced nanoscale materials and reactions.
Article
Environmental Sciences
C. Werner, W. Lucht, D. Gerten, C. Kammann
Summary: This study evaluates the contribution of sustainable pyrogenic carbon capture and storage (PyCCS) to negative emissions (NE) targets. Simulation results show that this method can alleviate land use pressure and competition with food production caused by biomass-based NE technologies, while achieving net CO2 extraction.
Article
Multidisciplinary Sciences
Johannes Bednar, Michael Obersteiner, Artem Baklanov, Marcus Thomson, Fabian Wagner, Oliver Geden, Myles Allen, Jim W. Hall
Summary: The study proposes intertemporal instruments to establish carbon taxes and emission trading systems as the basis for funding a net-negative carbon economy. It also suggests that the repayment of previously accrued carbon debt through 'carbon removal obligations' (CROs) can lead to a more ambitious near-term decarbonization with a less aggressive deployment of CDR.
Article
Green & Sustainable Science & Technology
Purusothmn Nair S. Bhasker Nair, Raymond R. Tan, Dominic C. Y. Foo
Summary: The implementation of negative emission technologies (NETs) is vital for controlling global warming, despite their lack of technological maturity. This paper presents a graphical targeting technique for the implementation of energy-consuming NETs (EC-NETs) in sustainable energy planning. A case study demonstrates the effectiveness of EC-NETs in carbon management and highlights the need for compensation of their energy demand with additional renewable energy sources.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Review
Environmental Sciences
Lina Roeschel, Barbara Neumann
Summary: The timely achievement of global climate targets, such as limiting global warming to 1.5 degrees C, requires the safeguarding and enhancement of the global carbon sink. Ocean-based negative emissions technologies (ONETs) have the potential to enhance carbon sequestration and storage in the ocean, but they may also unintentionally impact the marine environment and related ecosystem services. The governance framework for ONETs needs to be expanded to consider these potential impacts and ensure comprehensive governance of the technologies. Evaluation: 7/10
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Jorg Schwinger, Ali Asaadi, Nadine Goris, Hanna Lee
Summary: This study reveals that a decrease or collapse of the Atlantic Meridional Overturning Circulation can lead to cooling in the northern high latitudes. The study also suggests that deliberate CO2 removal from the atmosphere may amplify this cooling effect and result in temporary undershoot of the target temperature level.
NATURE COMMUNICATIONS
(2022)
Article
Environmental Studies
Johannes Bednar, Justin Macinante, Artem Baklanov, James Hall, Fabian Wagner, Navraj S. Ghaleigh, Michael Obersteiner
Summary: According to climate mitigation scenario assessments, extensive deployment of carbon dioxide removal (CDR) is necessary to limit global warming to 1.5-2 degrees C. To address concerns about financial viability, lack of incentives, and risks associated with large scale CDR, a policy framework called 'carbon removal obligations' (CROs) has been proposed. An updated CRO policy framework consisting of a principal CRO mechanism and a CRO pricing instrument is suggested. This framework aims to integrate CDR markets independently from emission reduction markets and align CROs with established financial systems.
Article
Environmental Sciences
Gregor Jaschke, Frank Biermann
Summary: Negative emissions are increasingly seen as a policy option to limit climate change. However, the most readily available technologies that could deliver negative emissions require large amounts of land and pose significant risks for livelihoods and the environment. The policy discourse on negative emissions is mainly centered in the Global North, with limited attention given to the Global South.
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS
(2022)
Review
Environmental Sciences
Selene Cobo, Valentina Negri, Antonio Valente, David M. Reiner, Lorie Hamelin, Niall Mac Dowell, Gonzalo Guillen-Gosalbez
Summary: Most scenarios for mitigating climate change and limiting global warming to 1.5 degrees C heavily rely on negative emissions technologies and practices (NETPs). In this study, we conducted an analysis to identify the most promising NETPs, considering factors such as technical maturity, economic feasibility, greenhouse gas removal potential, resource use, and environmental impacts. Although there are trade-offs among these indicators, we found 16 Pareto-efficient NETPs, of which forestation, soil carbon sequestration, enhanced weathering, and direct air carbon capture and storage (DACCS) show particular promise. Forestation and soil carbon sequestration have co-benefits, lower costs, and higher maturity levels, while enhanced weathering performs well but requires further investigation of its risks. DACCS has fewer side-effects but significant energy demand, and early investments could accelerate its scale-up. These insights can guide future research and planning for the sustainable deployment of NETPs within this decade.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Dennis Gilfillan, Gregg Marland
Summary: Global- and national-scale inventories of CO2 emissions are important for countries to reduce emissions. The CDIAC-FF dataset, covering all countries and years since 1751, has been updated with changes in calculating CO2 emissions and analyzed for trends and unique factors driving emissions in countries. Diverse strategies are needed to mitigate carbon emissions and anthropogenic climate change.
EARTH SYSTEM SCIENCE DATA
(2021)
Article
Multidisciplinary Sciences
Ploy Achakulwisut, Peter Erickson, Celine Guivarch, Roberto Schaeffer, Elina Brutschin, Steve Pye
Summary: The Intergovernmental Panel on Climate Change's mitigation scenarios database is a valuable resource for policymakers, but there are variations in models and scenario designs. This analysis focuses on scenarios with warming limited to 2 degrees C or below, examining the feasibility and trajectory of different fossil fuel reduction pathways. The findings emphasize the importance of clear reduction benchmarks in coal, oil, and gas production and use, along with other climate mitigation targets.
NATURE COMMUNICATIONS
(2023)
Article
Environmental Sciences
Huiqing Zhao, Jian Hu, Feng Hao, Hongyuan Zhang
Summary: This study used an extended STIRPAT model to analyze the key determinants of carbon dioxide emissions in China and forecasted the future emissions trends. The results showed that population size, economic development level, and energy intensity have significant effects on carbon dioxide emissions. Under the baseline scenario, China's carbon dioxide emissions will peak in 2029.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Letter
Limnology
Kelly S. Aho, Jacob D. Hosen, Laura A. Logozzo, Wade R. McGillis, Peter A. Raymond
Summary: Aquatic primary productivity can be sustained at high levels even when dissolved CO2 is depleted, with bicarbonate potentially supporting up to about 58% of GPP. This has implications for freshwater ecology, biogeochemistry, and isotopic analysis.
LIMNOLOGY AND OCEANOGRAPHY LETTERS
(2021)
Article
Environmental Sciences
Joe Yates, Suneetha Kadiyala, Yuemeng Li, Sylvia Levy, Abel Endashaw, Hallie Perlick, Parke Wilde
Summary: The advancement of science and evidence-based solutions for planetary health increasingly require interdisciplinary and international learning and sharing. This study investigates the benefits and challenges of transitioning from in-person to virtual conferences in terms of climate impact, participation, attendee interaction, and satisfaction. The findings show that transitioning online resulted in significant reductions in aviation CO2 emissions and increased attendance from low-income and middle-income countries, while participant ratings remained consistent. However, there were lower levels of participation in conference social events. The study highlights the need for new approaches to academic conferencing to address the urgency of reducing CO2 emissions and improving equity in scientific exchange.
LANCET PLANETARY HEALTH
(2022)
Article
Geosciences, Multidisciplinary
Chun Ngai Chan, Cheuk Lam Tsang, Frederick Lee, Boyi Liu, Lishan Ran
Summary: High-gradient headwater streams play a significant role in the carbon (C) cycle, emitting a substantial amount of CO2; the pCO2 in the stream water in the upper reach is much higher than ambient levels, demonstrating a potentially large emission of CO2 into the atmosphere within a short distance; in addition to rapid gas exchange, temperature-dependent metabolism and decomposition of organic matter in soil may modulate the carbon dynamics in headwater streams.
FRONTIERS IN EARTH SCIENCE
(2021)
